[Bug] Explicit layout with record struct

[Xyncgas]

For example

[<Struct; StructLayout(LayoutKind.Explicit)>]
 type Dimension2D = 
            {
                [<FieldOffsetAttribute(0)>]
                Memory : Vector2
                [<FieldOffsetAttribute(0)>]
                Width : float32
                [<FieldOffsetAttribute(4)>]
                Height : float32
            }
            with
            static member Zero = { Memory = Vector2.Zero; Width = 0f; Height = 0f; }

The point of explicit layout is you can change the memory by changing width / height, or the opposite way by using System.Numerics.Vector2 methods to change the memory

However I noticed that, while it's already hard to create a record with only memory is set

{Dimension2D.Memory = Vector2.Zero} //Alone doesn't work

If I were to do :

{ Dimension2D.Zero with Memory = Vector2.Multiply(aVector, value) } //Bug : the value remains zero after this no matter what you do

Where AnotherMemory is not zero and so is value, the result is zero for some reason

But if I were to do

let v = Vector2.Multiply(aVector, value)
{ Dimension2D.Zero with Memory = v; Width = aVector.X; Height = aVector.Y } //Works

It gives me a feeling that either I can't have record struct with explicit layout in F# like I can in C#, or there is a bug with it

[CyrusNajmabadi]

Are you asking a question about f#?

[Xyncgas]

My question is, how is this consistent with F# and C# both being Microsoft's .NET's language but the with keyword works differently, if there is clearly designs that are intentional to be inconsistent then the people writing compiler for these languages might have an answer, and if it's unintentional, I would be looking forward to hearing if you consider this as a bug and fix it and if so is C# way the right way to do it or should the with keyword works like how it's working in F# for the effect it's having on explicit layout

[CyrusNajmabadi]

I don't see any c# in your post. So I'm not sure what you're comparing to.